[deb_ffmpeg.git] / ffmpeg / libavfilter / vf_mergeplanes.c

/*
 * Copyright (c) 2013 Paul B Mahol
 *
 * This file is part of FFmpeg.
 *
 * FFmpeg is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 *
 * FFmpeg is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with FFmpeg; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 */

#include "libavutil/avassert.h"
#include "libavutil/avstring.h"
#include "libavutil/imgutils.h"
#include "libavutil/opt.h"
#include "libavutil/pixdesc.h"
#include "avfilter.h"
#include "internal.h"
#include "framesync.h"

typedef struct InputParam {
    int depth[4];
    int nb_planes;
    int planewidth[4];
    int planeheight[4];
} InputParam;

typedef struct MergePlanesContext {
    const AVClass *class;
    int64_t mapping;
    const enum AVPixelFormat out_fmt;
    int nb_inputs;
    int nb_planes;
    int planewidth[4];
    int planeheight[4];
    int map[4][2];
    const AVPixFmtDescriptor *outdesc;

    FFFrameSync fs;
    FFFrameSyncIn fsin[3]; /* must be immediately after fs */
} MergePlanesContext;

#define OFFSET(x) offsetof(MergePlanesContext, x)
#define FLAGS AV_OPT_FLAG_FILTERING_PARAM|AV_OPT_FLAG_VIDEO_PARAM
static const AVOption mergeplanes_options[] = {
    { "mapping", "set input to output plane mapping", OFFSET(mapping), AV_OPT_TYPE_INT, {.i64=0}, 0, 0x33333333, FLAGS },
    { "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, 0, INT_MAX, .flags=FLAGS },
    { NULL }
};

AVFILTER_DEFINE_CLASS(mergeplanes);

static int filter_frame(AVFilterLink *inlink, AVFrame *in)
{
    MergePlanesContext *s = inlink->dst->priv;
    return ff_framesync_filter_frame(&s->fs, inlink, in);
}

static av_cold int init(AVFilterContext *ctx)
{
    MergePlanesContext *s = ctx->priv;
    int64_t m = s->mapping;
    int i, ret;

    s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
    if (!(s->outdesc->flags & AV_PIX_FMT_FLAG_PLANAR) ||
        s->outdesc->nb_components < 2) {
        av_log(ctx, AV_LOG_ERROR, "Only planar formats with more than one component are supported.\n");
        return AVERROR(EINVAL);
    }
    s->nb_planes = av_pix_fmt_count_planes(s->out_fmt);

    for (i = s->nb_planes - 1; i >= 0; i--) {
        s->map[i][0] = m & 0xf;
        m >>= 4;
        s->map[i][1] = m & 0xf;
        m >>= 4;

        if (s->map[i][0] > 3 || s->map[i][1] > 3) {
            av_log(ctx, AV_LOG_ERROR, "Mapping with out of range input and/or plane number.\n");
            return AVERROR(EINVAL);
        }

        s->nb_inputs = FFMAX(s->nb_inputs, s->map[i][1] + 1);
    }

    av_assert0(s->nb_inputs && s->nb_inputs <= 4);

    for (i = 0; i < s->nb_inputs; i++) {
        AVFilterPad pad = { 0 };

        pad.type = AVMEDIA_TYPE_VIDEO;
        pad.name = av_asprintf("in%d", i);
        if (!pad.name)
            return AVERROR(ENOMEM);
        pad.filter_frame = filter_frame;

        if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0){
            av_freep(&pad.name);
            return ret;
        }
    }

    return 0;
}

static int query_formats(AVFilterContext *ctx)
{
    MergePlanesContext *s = ctx->priv;
    AVFilterFormats *formats = NULL;
    int i;

    s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
    for (i = 0; av_pix_fmt_desc_get(i); i++) {
        const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
        if (desc->comp[0].depth_minus1 == s->outdesc->comp[0].depth_minus1 &&
            av_pix_fmt_count_planes(i) == desc->nb_components)
            ff_add_format(&formats, i);
    }

    for (i = 0; i < s->nb_inputs; i++)
        ff_formats_ref(formats, &ctx->inputs[i]->out_formats);

    formats = NULL;
    ff_add_format(&formats, s->out_fmt);
    ff_formats_ref(formats, &ctx->outputs[0]->in_formats);

    return 0;
}

static int process_frame(FFFrameSync *fs)
{
    AVFilterContext *ctx = fs->parent;
    AVFilterLink *outlink = ctx->outputs[0];
    MergePlanesContext *s = fs->opaque;
    AVFrame *in[4] = { NULL };
    AVFrame *out;
    int i, ret;

    for (i = 0; i < s->nb_inputs; i++) {
        if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
            return ret;
    }

    out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
    if (!out)
        return AVERROR(ENOMEM);
    out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);

    for (i = 0; i < s->nb_planes; i++) {
        const int input = s->map[i][1];
        const int plane = s->map[i][0];

        av_image_copy_plane(out->data[i], out->linesize[i],
                            in[input]->data[plane], in[input]->linesize[plane],
                            s->planewidth[i], s->planeheight[i]);
    }

    return ff_filter_frame(outlink, out);
}

static int config_output(AVFilterLink *outlink)
{
    AVFilterContext *ctx = outlink->src;
    MergePlanesContext *s = ctx->priv;
    InputParam inputsp[4];
    FFFrameSyncIn *in;
    int i;

    ff_framesync_init(&s->fs, ctx, s->nb_inputs);
    in = s->fs.in;
    s->fs.opaque = s;
    s->fs.on_event = process_frame;

    outlink->w = ctx->inputs[0]->w;
    outlink->h = ctx->inputs[0]->h;
    outlink->time_base = ctx->inputs[0]->time_base;
    outlink->frame_rate = ctx->inputs[0]->frame_rate;
    outlink->sample_aspect_ratio = ctx->inputs[0]->sample_aspect_ratio;

    s->planewidth[1]  =
    s->planewidth[2]  = FF_CEIL_RSHIFT(outlink->w, s->outdesc->log2_chroma_w);
    s->planewidth[0]  =
    s->planewidth[3]  = outlink->w;
    s->planeheight[1] =
    s->planeheight[2] = FF_CEIL_RSHIFT(outlink->h, s->outdesc->log2_chroma_h);
    s->planeheight[0] =
    s->planeheight[3] = outlink->h;

    for (i = 0; i < s->nb_inputs; i++) {
        InputParam *inputp = &inputsp[i];
        AVFilterLink *inlink = ctx->inputs[i];
        const AVPixFmtDescriptor *indesc = av_pix_fmt_desc_get(inlink->format);
        int j;

        if (outlink->sample_aspect_ratio.num != inlink->sample_aspect_ratio.num ||
            outlink->sample_aspect_ratio.den != inlink->sample_aspect_ratio.den) {
            av_log(ctx, AV_LOG_ERROR, "input #%d link %s SAR %d:%d "
                                      "does not match output link %s SAR %d:%d\n",
                                      i, ctx->input_pads[i].name,
                                      inlink->sample_aspect_ratio.num,
                                      inlink->sample_aspect_ratio.den,
                                      ctx->output_pads[0].name,
                                      outlink->sample_aspect_ratio.num,
                                      outlink->sample_aspect_ratio.den);
            return AVERROR(EINVAL);
        }

        inputp->planewidth[1]  =
        inputp->planewidth[2]  = FF_CEIL_RSHIFT(inlink->w, indesc->log2_chroma_w);
        inputp->planewidth[0]  =
        inputp->planewidth[3]  = inlink->w;
        inputp->planeheight[1] =
        inputp->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, indesc->log2_chroma_h);
        inputp->planeheight[0] =
        inputp->planeheight[3] = inlink->h;
        inputp->nb_planes = av_pix_fmt_count_planes(inlink->format);

        for (j = 0; j < inputp->nb_planes; j++)
            inputp->depth[j] = indesc->comp[j].depth_minus1 + 1;

        in[i].time_base = inlink->time_base;
        in[i].sync   = 1;
        in[i].before = EXT_STOP;
        in[i].after  = EXT_STOP;
    }

    for (i = 0; i < s->nb_planes; i++) {
        const int input = s->map[i][1];
        const int plane = s->map[i][0];
        InputParam *inputp = &inputsp[input];

        if (plane + 1 > inputp->nb_planes) {
            av_log(ctx, AV_LOG_ERROR, "input %d does not have %d plane\n",
                                      input, plane);
            goto fail;
        }
        if (s->outdesc->comp[i].depth_minus1 + 1 != inputp->depth[plane]) {
            av_log(ctx, AV_LOG_ERROR, "output plane %d depth %d does not "
                                      "match input %d plane %d depth %d\n",
                                      i, s->outdesc->comp[i].depth_minus1 + 1,
                                      input, plane, inputp->depth[plane]);
            goto fail;
        }
        if (s->planewidth[i] != inputp->planewidth[plane]) {
            av_log(ctx, AV_LOG_ERROR, "output plane %d width %d does not "
                                      "match input %d plane %d width %d\n",
                                      i, s->planewidth[i],
                                      input, plane, inputp->planewidth[plane]);
            goto fail;
        }
        if (s->planeheight[i] != inputp->planeheight[plane]) {
            av_log(ctx, AV_LOG_ERROR, "output plane %d height %d does not "
                                      "match input %d plane %d height %d\n",
                                      i, s->planeheight[i],
                                      input, plane, inputp->planeheight[plane]);
            goto fail;
        }
    }

    return ff_framesync_configure(&s->fs);
fail:
    return AVERROR(EINVAL);
}

static int request_frame(AVFilterLink *outlink)
{
    MergePlanesContext *s = outlink->src->priv;
    return ff_framesync_request_frame(&s->fs, outlink);
}

static av_cold void uninit(AVFilterContext *ctx)
{
    MergePlanesContext *s = ctx->priv;
    int i;

    ff_framesync_uninit(&s->fs);

    for (i = 0; i < ctx->nb_inputs; i++)
        av_freep(&ctx->input_pads[i].name);
}

static const AVFilterPad mergeplanes_outputs[] = {
    {
        .name          = "default",
        .type          = AVMEDIA_TYPE_VIDEO,
        .config_props  = config_output,
        .request_frame = request_frame,
    },
    { NULL }
};

AVFilter ff_vf_mergeplanes = {
    .name          = "mergeplanes",
    .description   = NULL_IF_CONFIG_SMALL("Merge planes."),
    .priv_size     = sizeof(MergePlanesContext),
    .priv_class    = &mergeplanes_class,
    .init          = init,
    .uninit        = uninit,
    .query_formats = query_formats,
    .inputs        = NULL,
    .outputs       = mergeplanes_outputs,
    .flags         = AVFILTER_FLAG_DYNAMIC_INPUTS,
};
Commit	Line	Data
2ba45a60 DM	1	/*
	2	* Copyright (c) 2013 Paul B Mahol
	3	*
	4	* This file is part of FFmpeg.
	5	*
	6	* FFmpeg is free software; you can redistribute it and/or
	7	* modify it under the terms of the GNU Lesser General Public
	8	* License as published by the Free Software Foundation; either
	9	* version 2.1 of the License, or (at your option) any later version.
	10	*
	11	* FFmpeg is distributed in the hope that it will be useful,
	12	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	13	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	14	* Lesser General Public License for more details.
	15	*
	16	* You should have received a copy of the GNU Lesser General Public
	17	* License along with FFmpeg; if not, write to the Free Software
	18	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
	19	*/
	20
	21	#include "libavutil/avassert.h"
	22	#include "libavutil/avstring.h"
	23	#include "libavutil/imgutils.h"
	24	#include "libavutil/opt.h"
	25	#include "libavutil/pixdesc.h"
	26	#include "avfilter.h"
	27	#include "internal.h"
	28	#include "framesync.h"
	29
	30	typedef struct InputParam {
	31	int depth[4];
	32	int nb_planes;
	33	int planewidth[4];
	34	int planeheight[4];
	35	} InputParam;
	36
	37	typedef struct MergePlanesContext {
	38	const AVClass *class;
	39	int64_t mapping;
	40	const enum AVPixelFormat out_fmt;
	41	int nb_inputs;
	42	int nb_planes;
	43	int planewidth[4];
	44	int planeheight[4];
	45	int map[4][2];
	46	const AVPixFmtDescriptor *outdesc;
	47
	48	FFFrameSync fs;
	49	FFFrameSyncIn fsin[3]; /* must be immediately after fs */
	50	} MergePlanesContext;
	51
	52	#define OFFSET(x) offsetof(MergePlanesContext, x)
	53	#define FLAGS AV_OPT_FLAG_FILTERING_PARAM\|AV_OPT_FLAG_VIDEO_PARAM
	54	static const AVOption mergeplanes_options[] = {
	55	{ "mapping", "set input to output plane mapping", OFFSET(mapping), AV_OPT_TYPE_INT, {.i64=0}, 0, 0x33333333, FLAGS },
	56	{ "format", "set output pixel format", OFFSET(out_fmt), AV_OPT_TYPE_PIXEL_FMT, {.i64=AV_PIX_FMT_YUVA444P}, 0, INT_MAX, .flags=FLAGS },
	57	{ NULL }
	58	};
	59
	60	AVFILTER_DEFINE_CLASS(mergeplanes);
	61
	62	static int filter_frame(AVFilterLink inlink, AVFrame in)
	63	{
	64	MergePlanesContext *s = inlink->dst->priv;
65	return ff_framesync_filter_frame(&s->fs, inlink, in);
66	}
67
68	static av_cold int init(AVFilterContext *ctx)
69	{
70	MergePlanesContext *s = ctx->priv;
71	int64_t m = s->mapping;
72	int i, ret;
73
74	s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
75	if (!(s->outdesc->flags & AV_PIX_FMT_FLAG_PLANAR) \|\|
76	s->outdesc->nb_components < 2) {
77	av_log(ctx, AV_LOG_ERROR, "Only planar formats with more than one component are supported.\n");
78	return AVERROR(EINVAL);
79	}
80	s->nb_planes = av_pix_fmt_count_planes(s->out_fmt);
81
82	for (i = s->nb_planes - 1; i >= 0; i--) {
83	s->map[i][0] = m & 0xf;
84	m >>= 4;
85	s->map[i][1] = m & 0xf;
86	m >>= 4;
87
88	if (s->map[i][0] > 3 \|\| s->map[i][1] > 3) {
89	av_log(ctx, AV_LOG_ERROR, "Mapping with out of range input and/or plane number.\n");
90	return AVERROR(EINVAL);
91	}
92
93	s->nb_inputs = FFMAX(s->nb_inputs, s->map[i][1] + 1);
94	}
95
96	av_assert0(s->nb_inputs && s->nb_inputs <= 4);
97
98	for (i = 0; i < s->nb_inputs; i++) {
99	AVFilterPad pad = { 0 };
100
101	pad.type = AVMEDIA_TYPE_VIDEO;
102	pad.name = av_asprintf("in%d", i);
103	if (!pad.name)
104	return AVERROR(ENOMEM);
105	pad.filter_frame = filter_frame;
106
107	if ((ret = ff_insert_inpad(ctx, i, &pad)) < 0){
108	av_freep(&pad.name);
109	return ret;
110	}
111	}
112
113	return 0;
114	}
115
116	static int query_formats(AVFilterContext *ctx)
117	{
118	MergePlanesContext *s = ctx->priv;
119	AVFilterFormats *formats = NULL;
120	int i;
121
122	s->outdesc = av_pix_fmt_desc_get(s->out_fmt);
123	for (i = 0; av_pix_fmt_desc_get(i); i++) {
124	const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(i);
125	if (desc->comp[0].depth_minus1 == s->outdesc->comp[0].depth_minus1 &&
126	av_pix_fmt_count_planes(i) == desc->nb_components)
127	ff_add_format(&formats, i);
128	}
129
130	for (i = 0; i < s->nb_inputs; i++)
131	ff_formats_ref(formats, &ctx->inputs[i]->out_formats);
132
133	formats = NULL;
134	ff_add_format(&formats, s->out_fmt);
135	ff_formats_ref(formats, &ctx->outputs[0]->in_formats);
136
137	return 0;
138	}
139
140	static int process_frame(FFFrameSync *fs)
141	{
142	AVFilterContext *ctx = fs->parent;
143	AVFilterLink *outlink = ctx->outputs[0];
144	MergePlanesContext *s = fs->opaque;
145	AVFrame *in[4] = { NULL };
146	AVFrame *out;
147	int i, ret;
148
149	for (i = 0; i < s->nb_inputs; i++) {
150	if ((ret = ff_framesync_get_frame(&s->fs, i, &in[i], 0)) < 0)
151	return ret;
152	}
153
154	out = ff_get_video_buffer(outlink, outlink->w, outlink->h);
155	if (!out)
156	return AVERROR(ENOMEM);
157	out->pts = av_rescale_q(s->fs.pts, s->fs.time_base, outlink->time_base);
158
159	for (i = 0; i < s->nb_planes; i++) {
160	const int input = s->map[i][1];
161	const int plane = s->map[i][0];
162
163	av_image_copy_plane(out->data[i], out->linesize[i],
164	in[input]->data[plane], in[input]->linesize[plane],
165	s->planewidth[i], s->planeheight[i]);
166	}
167
168	return ff_filter_frame(outlink, out);
169	}
170
171	static int config_output(AVFilterLink *outlink)
172	{
173	AVFilterContext *ctx = outlink->src;
174	MergePlanesContext *s = ctx->priv;
175	InputParam inputsp[4];
176	FFFrameSyncIn *in;
177	int i;
178
179	ff_framesync_init(&s->fs, ctx, s->nb_inputs);
180	in = s->fs.in;
181	s->fs.opaque = s;
182	s->fs.on_event = process_frame;
183
184	outlink->w = ctx->inputs[0]->w;
185	outlink->h = ctx->inputs[0]->h;
186	outlink->time_base = ctx->inputs[0]->time_base;
187	outlink->frame_rate = ctx->inputs[0]->frame_rate;
188	outlink->sample_aspect_ratio = ctx->inputs[0]->sample_aspect_ratio;
189
190	s->planewidth[1] =
191	s->planewidth[2] = FF_CEIL_RSHIFT(outlink->w, s->outdesc->log2_chroma_w);
192	s->planewidth[0] =
193	s->planewidth[3] = outlink->w;
194	s->planeheight[1] =
195	s->planeheight[2] = FF_CEIL_RSHIFT(outlink->h, s->outdesc->log2_chroma_h);
196	s->planeheight[0] =
197	s->planeheight[3] = outlink->h;
198
199	for (i = 0; i < s->nb_inputs; i++) {
200	InputParam *inputp = &inputsp[i];
201	AVFilterLink *inlink = ctx->inputs[i];
202	const AVPixFmtDescriptor *indesc = av_pix_fmt_desc_get(inlink->format);
203	int j;
204
205	if (outlink->sample_aspect_ratio.num != inlink->sample_aspect_ratio.num \|\|
206	outlink->sample_aspect_ratio.den != inlink->sample_aspect_ratio.den) {
207	av_log(ctx, AV_LOG_ERROR, "input #%d link %s SAR %d:%d "
208	"does not match output link %s SAR %d:%d\n",
209	i, ctx->input_pads[i].name,
210	inlink->sample_aspect_ratio.num,
211	inlink->sample_aspect_ratio.den,
212	ctx->output_pads[0].name,
213	outlink->sample_aspect_ratio.num,
214	outlink->sample_aspect_ratio.den);
215	return AVERROR(EINVAL);
216	}
217
218	inputp->planewidth[1] =
219	inputp->planewidth[2] = FF_CEIL_RSHIFT(inlink->w, indesc->log2_chroma_w);
220	inputp->planewidth[0] =
221	inputp->planewidth[3] = inlink->w;
222	inputp->planeheight[1] =
223	inputp->planeheight[2] = FF_CEIL_RSHIFT(inlink->h, indesc->log2_chroma_h);
224	inputp->planeheight[0] =
225	inputp->planeheight[3] = inlink->h;
226	inputp->nb_planes = av_pix_fmt_count_planes(inlink->format);
227
228	for (j = 0; j < inputp->nb_planes; j++)
229	inputp->depth[j] = indesc->comp[j].depth_minus1 + 1;
230
231	in[i].time_base = inlink->time_base;
232	in[i].sync = 1;
233	in[i].before = EXT_STOP;
234	in[i].after = EXT_STOP;
235	}
236
237	for (i = 0; i < s->nb_planes; i++) {
238	const int input = s->map[i][1];
239	const int plane = s->map[i][0];
240	InputParam *inputp = &inputsp[input];
241
242	if (plane + 1 > inputp->nb_planes) {
243	av_log(ctx, AV_LOG_ERROR, "input %d does not have %d plane\n",
244	input, plane);
245	goto fail;
246	}
247	if (s->outdesc->comp[i].depth_minus1 + 1 != inputp->depth[plane]) {
248	av_log(ctx, AV_LOG_ERROR, "output plane %d depth %d does not "
249	"match input %d plane %d depth %d\n",
250	i, s->outdesc->comp[i].depth_minus1 + 1,
251	input, plane, inputp->depth[plane]);
252	goto fail;
253	}
254	if (s->planewidth[i] != inputp->planewidth[plane]) {
255	av_log(ctx, AV_LOG_ERROR, "output plane %d width %d does not "
256	"match input %d plane %d width %d\n",
257	i, s->planewidth[i],
258	input, plane, inputp->planewidth[plane]);
259	goto fail;
260	}
261	if (s->planeheight[i] != inputp->planeheight[plane]) {
262	av_log(ctx, AV_LOG_ERROR, "output plane %d height %d does not "
263	"match input %d plane %d height %d\n",
264	i, s->planeheight[i],
265	input, plane, inputp->planeheight[plane]);
266	goto fail;
267	}
268	}
269
270	return ff_framesync_configure(&s->fs);
271	fail:
272	return AVERROR(EINVAL);
273	}
274
275	static int request_frame(AVFilterLink *outlink)
276	{
277	MergePlanesContext *s = outlink->src->priv;
278	return ff_framesync_request_frame(&s->fs, outlink);
279	}
280
281	static av_cold void uninit(AVFilterContext *ctx)
282	{
283	MergePlanesContext *s = ctx->priv;
284	int i;
285
286	ff_framesync_uninit(&s->fs);
287
288	for (i = 0; i < ctx->nb_inputs; i++)
289	av_freep(&ctx->input_pads[i].name);
290	}
291
292	static const AVFilterPad mergeplanes_outputs[] = {
293	{
294	.name = "default",
295	.type = AVMEDIA_TYPE_VIDEO,
296	.config_props = config_output,
297	.request_frame = request_frame,
298	},
299	{ NULL }
300	};
301
302	AVFilter ff_vf_mergeplanes = {
303	.name = "mergeplanes",
304	.description = NULL_IF_CONFIG_SMALL("Merge planes."),
305	.priv_size = sizeof(MergePlanesContext),
306	.priv_class = &mergeplanes_class,
307	.init = init,
308	.uninit = uninit,
309	.query_formats = query_formats,
310	.inputs = NULL,
311	.outputs = mergeplanes_outputs,
312	.flags = AVFILTER_FLAG_DYNAMIC_INPUTS,
313	};